在造船工业中广泛采用电弧焊接以后,根本改变了船体的结构。如果说铆接船体主要是采用搭接,那末对接接头就是焊接船体的主要连接方法。铆接结构要采用大量各种不同的垫板、角铁、肘板和铆钉,使得船体结构极为复杂,加上用搭接方法连接,更加重了船体的重量。焊接结构的船体不存在这种情况,因此重量可以减轻25%以上,节省很多金属材料。 After extensive use of arc welding in the shipbuilding industry, the hull structure has been fundamentally changed. If the riveting hull is mainly lap, then the butt joint is the main method of welding the hull. Riveted structure to use a large number of different plate, angle iron, brackets and rivets, making the hull structure is extremely complex, coupled with lap method connection, more emphasis on the weight of the hull. Welded structure of the hull does not exist in this case, so the weight can be reduced by more than 25%, saving a lot of metal materials.